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Preparation method of waterborne hyperbranched polyurethane acrylate emulsion, UV curing coating and preparation method and application of UV curing coating

A polyurethane acrylate, curing coating technology, used in polyurea/polyurethane coatings, antifouling/underwater coatings, conductive coatings, etc., can solve the problems of adhesion and scratch resistance that cannot meet the requirements, and achieve broad market applications Value, toughness improvement, effect of lowering reaction temperature

Active Publication Date: 2020-11-24
珠海瑞杰包装制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the defect that the adhesion and scratch resistance of the coating for polypropylene plastic packaging barrels in the prior art cannot meet the requirements, the present invention is to provide a preparation method of water-based hyperbranched polyurethane acrylate emulsion, a UV curing coating and a preparation method thereof and Application in polypropylene packaging barrels

Method used

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  • Preparation method of waterborne hyperbranched polyurethane acrylate emulsion, UV curing coating and preparation method and application of UV curing coating
  • Preparation method of waterborne hyperbranched polyurethane acrylate emulsion, UV curing coating and preparation method and application of UV curing coating
  • Preparation method of waterborne hyperbranched polyurethane acrylate emulsion, UV curing coating and preparation method and application of UV curing coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] A kind of UV curable paint for polypropylene plastic packaging barrel, its raw material and weight ratio are:

[0052] Water-based hyperbranched polyurethane acrylate emulsion (UVWHPUA-1) 78.5%, defoamer TEGO 901W 0.05%, dispersant BYK190 1%, environmental solvent ester pure-12 6%, photoinitiator TPO 4%, modified nano-tin oxide Antimony 2%, adhesion promoter chlorinated polyethylene 1%, anti-settling agent attapulgite 2%, wetting and leveling agent TEGO4100 0.6%, thickener RM8W 0.8% and pigment and filler 4%.

[0053] A preparation method for a UV-cured coating for a polypropylene packaging drum, comprising the steps of:

[0054] (1) Preparation of modified nano-tin antimony oxide

[0055] Mix the silane coupling agent KH570, methanol and water at a mass ratio of 20:72:8 to hydrolyze the silane coupling agent KH570, adjust the pH value between 4-5 with glacial acetic acid, and hydrolyze for 30-60 minutes , to obtain the silane coupling agent KH570 hydrolyzate; add nan...

Embodiment 2

[0080] A kind of UV curable coating for polypropylene packaging drum, its raw material and weight ratio are:

[0081]Water-based hyperbranched polyurethane acrylate emulsion (UVWHPUA-2) 66.3%; defoamer TEGO901W 0.1%; dispersant BYK194N 1%; environmental solvent ester alcohol-12 10%; photoinitiator 651 6%; modified nano-silica 6%; adhesion promoter chlorinated polyethylene 3%; anti-settling agent montmorillonite 2%; wetting and leveling agent TEGO4100 0.6%; thickener OMG0620 1%; pigment and filler 4%.

[0082] A preparation method for a UV-cured coating for a polypropylene packaging drum, comprising the steps of:

[0083] (1) Preparation of modified nano silica

[0084] Add nano-silica to absolute ethanol, ultrasonically disperse for 20 minutes, and make a nano-silica dispersion liquid; then add titanate coupling agent 311w, adjust the pH of the system to 8-10, and then add liquid polyethylene glycol Alcohol propylene glycol, emulsified for 20 minutes, the pH of the emulsifie...

Embodiment 3

[0100] A kind of UV curable coating for polypropylene packaging drum, its raw material and weight ratio are:

[0101] Water-based hyperbranched polyurethane acrylate emulsion (UVWHPUA-3) 79.5%, defoamer TEGO901W 0.05%, dispersant TEGO747 2%, environmental solvent ester alcohol-12 1%, photoinitiator 184 3%, modified nano titanium dioxide 4% , Chlorinated polyethylene adhesion promoter 2%, anti-settling agent montmorillonite 2%, wetting and leveling agent TEGO4100 1%, thickener OMG0620 1.5%, coloring pigment 4%.

[0102] A preparation method for a UV-cured coating for a polypropylene packaging drum, comprising the steps of:

[0103] (1) Preparation of modified nano titanium dioxide

[0104] Mix the silane coupling agent KH550, methanol and water in a mass ratio of 20:72:8 to hydrolyze the silane coupling agent KH550, adjust the pH value with sodium hydroxide to control it between 9.0-10.0, and hydrolyze it at 30-60 minutes, to obtain the hydrolyzate of silane coupling agent KH...

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Abstract

The invention belongs to the technical field of UV curing coatings, and particularly relates to a preparation method of a waterborne hyperbranched polyurethane acrylate emulsion, a UV curing coating and a preparation method and application of the UV curing coating. The UV-curable coating is prepared from the following raw materials in percentage by weight: 60 to 80 percent of waterborne hyperbranched polyurethane acrylate emulsion, 0.05 to 0.1 percent of a defoaming agent, 0.5 to 2 percent of a dispersing agent, 2 to 6 percent of a photoinitiator, 1 to 5 percent of modified nano powder, 0 to 10 percent of an environment-friendly solvent, 1 to 3 percent of an adhesion promoter, 1 to 3 percent of an anti-settling agent and 0.3 to 1 percent of a wetting leveling agent. 0.5-1.5% of a thickening agent and 4-10% of a pigment filler; the invention further provides a preparation method of the UV curing coating for a polypropylene packaging barrel. The UV curing coating for the polypropylene packaging barrel, prepared by the invention, has excellent wear resistance and relatively high adhesive force on the polypropylene packaging barrel, and has excellent weather resistance.

Description

technical field [0001] The invention belongs to the technical field of UV curing coatings, and in particular relates to a preparation method of a water-based hyperbranched polyurethane acrylate emulsion, a UV curing coating, a preparation method thereof, and an application in a polypropylene packaging barrel. Background technique [0002] Polypropylene plastic packaging barrels have beautiful appearance, light weight, good strength, impact resistance, corrosion resistance, non-toxic and tasteless, convenient transportation, long service life, and are widely used in many industries such as coatings, lubricants, food, chemicals, and dangerous bags. [0003] Coatings for polypropylene packaging barrels ideally require good adhesion to non-polar substrates such as polypropylene, good impact resistance and toughness, fast drying, water resistance, weather resistance, scratch resistance, and environmental protection, while the coatings on the market are very It is difficult to mee...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/66C08G18/34C08G18/32C08G18/10C08G18/12C08G18/42C08G18/67C09D5/08C09D5/16C09D5/24C09D175/14C09D7/62
CPCC08G18/10C08G18/12C08G18/672C08G18/4208C09D175/14C09D5/24C09D5/1687C09D5/1662C09D5/08C08K2003/2296C08K2003/2241C08K2201/011C08G18/348C08G18/3228C08G18/6651C08K9/06C08K3/22C08K9/04C08K3/36
Inventor 孙金鹏潘俊王卫红潘凯李军苑红亮
Owner 珠海瑞杰包装制品有限公司
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